CN111057548A - Nitrogen oxide green fluorescent powder and preparation method and application thereof - Google Patents
Nitrogen oxide green fluorescent powder and preparation method and application thereof Download PDFInfo
- Publication number
- CN111057548A CN111057548A CN201911424822.1A CN201911424822A CN111057548A CN 111057548 A CN111057548 A CN 111057548A CN 201911424822 A CN201911424822 A CN 201911424822A CN 111057548 A CN111057548 A CN 111057548A
- Authority
- CN
- China
- Prior art keywords
- compound
- nitrogen oxide
- oxide green
- green phosphor
- fluorescent powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 125
- 239000000843 powder Substances 0.000 title abstract description 35
- 108010043121 Green Fluorescent Proteins Proteins 0.000 title abstract description 26
- 238000002360 preparation method Methods 0.000 title description 9
- 239000000126 substance Substances 0.000 claims abstract description 22
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 54
- 150000001875 compounds Chemical class 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229940126062 Compound A Drugs 0.000 claims description 8
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 claims description 8
- LVTJOONKWUXEFR-FZRMHRINSA-N protoneodioscin Natural products O(C[C@@H](CC[C@]1(O)[C@H](C)[C@@H]2[C@]3(C)[C@H]([C@H]4[C@@H]([C@]5(C)C(=CC4)C[C@@H](O[C@@H]4[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@@H](O)[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@H](CO)O4)CC5)CC3)C[C@@H]2O1)C)[C@H]1[C@H](O)[C@H](O)[C@H](O)[C@@H](CO)O1 LVTJOONKWUXEFR-FZRMHRINSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 239000012298 atmosphere Substances 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052593 corundum Inorganic materials 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 claims description 2
- 229910000018 strontium carbonate Inorganic materials 0.000 claims description 2
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Inorganic materials [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 230000003647 oxidation Effects 0.000 abstract description 9
- 238000007254 oxidation reaction Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 description 6
- 238000000295 emission spectrum Methods 0.000 description 5
- 238000000695 excitation spectrum Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910010199 LiAl Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- -1 oxynitrides Chemical class 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910020440 K2SiF6 Inorganic materials 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7715—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing cerium
- C09K11/7716—Chalcogenides
- C09K11/7718—Chalcogenides with alkaline earth metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
The invention provides nitric oxide green fluorescent powder, and the chemical general formula of the nitric oxide green fluorescent powder is Sr2‑xCexAl3Si7ON13Wherein x is more than 0 and less than or equal to 1. The nitrogen oxide green fluorescent powder has extremely high chemical stability, high-temperature oxidation resistance and water resistance, the emission peak of the nitrogen oxide green fluorescent powder is very wide, the full width at half maximum reaches 124 nanometers, and the nitrogen oxide green fluorescent powder can be used as a fluorescent material of an LED lamp.
Description
Technical Field
The invention relates to the technical field of fluorescent material preparation, and particularly relates to nitric oxide green fluorescent powder and a preparation method and application thereof.
Background
The mainstream fluorescent powder types at present can be divided into oxides, nitrides, oxynitrides, sulfides, fluorides and the like. In either case, problems of chemical stability are encountered. The chemical stability is low for various reasons, and there are problems that the efficiency is reduced during the use and the service life is short.
Nitrides due to their main anion N3-The nitride tends to be oxidized and decomposed due to its reducing property. On the other hand, rare earth ion Eu2+Because of its excellent luminous efficacy, it has been a leading role in the field of display illumination as one of the most commonly used rare earth ions. However, Eu2+Is not so stable, and tends to be oxidized to trivalent. Such as Sr2Si5N8:Eu2+After the red phosphor is treated at 200 ℃, Eu is selected due to the phosphor matrix and rare earth ions2+Oxidation causes a significant irreversible decrease in the emission intensity. Such as Sr [ LiAl ]3N4]:Eu2+Although the red phosphor has good heat resistance and does not generate obvious thermal oxidation phenomenon, Sr [ LiAl ]3N4]Is intrinsically waterproof and reacts with water vapor in the air during use, resulting in irreversible reduction of the luminous intensity. Fluoride K2SiF6:Mn4+In addition, the emission peak of the green fluorescent powder with high efficiency is narrower, the half-height width is below 70 nanometers, such as β -Sialon, and the fluorescent powder is beneficial to expanding the color gamut and is suitable for a display system but not suitable for an illumination system.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the nitrogen oxide green fluorescent powder and the preparation method and application thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: nitric oxide green phosphor, wherein the chemical general formula of the nitric oxide green phosphor is Sr2-xCexAl3Si7ON13Wherein x is more than 0 and less than or equal to 1.
The nitrogen oxide green fluorescent powder is a novel nitrogen oxide green fluorescent powder, has extremely high chemical stability and has the characteristics of high-temperature oxidation resistance and water resistance, and the fluorescent intensity of the fluorescent powder after ignition is not reduced after the nitrogen oxide green fluorescent powder is subjected to ignition for two hours at 800 ℃ in an air atmosphere; the fluorescent intensity of the nitric oxide green fluorescent powder is not reduced after the nitric oxide green fluorescent powder is soaked in water for 5 days. The emission peak of the nitrogen oxide green fluorescent powder is very wide, and the full width at half maximum reaches 124 nanometers; the oxynitride green phosphor has a highly cross-linked covalent three-dimensional crystal structure as shown in fig. 1, (O, N) - (Al, Si) -. The covalent framework of the nitrogen oxide green fluorescent powder has a large number of covalent electrons among atomic nuclei in atomic level, and the covalent electrons play a role of 'glue' to bind atoms in the crystal, so that the atoms are difficult to dissociate and extremely stable.
Preferably, in the chemical general formula of the nitrogen oxide green phosphor, x is more than or equal to 0.01 and less than or equal to 1.
The inventor finds that the content of Ce in the nitrogen oxide green fluorescent powder has a great influence on the chemical stability of the nitrogen oxide green fluorescent powder, and finds that the high-temperature oxidation resistance and the water resistance of the nitrogen oxide green fluorescent powder are better when x is more than or equal to 0.01 and less than or equal to 1 in the chemical general formula of the nitrogen oxide green fluorescent powder.
Preferably, in the chemical general formula of the nitrogen oxide green phosphor, x is more than or equal to 0.04 and less than or equal to 0.08.
More preferably, in the chemical general formula of the nitrogen oxide green phosphor, x is 0.04.
The inventor researches and discovers that when x is 0.04 in the chemical general formula of the nitrogen oxide green phosphor, the characteristics of high-temperature oxidation resistance and water resistance of the nitrogen oxide green phosphor are relatively better.
The invention also provides a preparation method of any of the nitrogen oxide green fluorescent powder, which comprises the following steps:
(1) uniformly mixing a compound A containing Sr element, a compound B containing Ce element, a compound C containing Al element and a compound D containing Si element according to a stoichiometric ratio to obtain a mixed raw material, wherein at least one of the compound A, the compound B, the compound C and the compound D contains oxygen element, and at least one of the compound A, the compound B, the compound C and the compound D contains nitrogen element;
(2) and (2) calcining the mixed raw material obtained in the step (1) at 1400-1800 ℃ in an inert gas atmosphere.
The preparation method of the nitrogen oxide green fluorescent powder is simple to operate and low in preparation cost.
Preferably, in the step (2), the calcination time is 2-20 hours.
Preferably, the inert gas is nitrogen.
Preferably, the Sr element-containing compound A is SrCO3、SrO、Sr(NO3)2Or SrC2O4。
Preferably, the compound B containing Ce is CeO2Or Ce (NO)3)3。
Preferably, the compound C containing Al is AlN or Al2O3Or Al (NO)3)3The compound D containing Si is Si3N4Or SiO2。
The invention also provides application of any one of the nitrogen oxide green fluorescent powder as LED lamp fluorescent powder.
When the nitrogen oxide green fluorescent powder is used as the fluorescent powder of the LED lamp, the emission peak of emitted light is very wide, the service life is long, the property is stable in the using process, and the influence of high-temperature oxidation and water vapor is very small.
The invention has the beneficial effects that: the nitrogen oxide green fluorescent powder has extremely high chemical stability, high temperature oxidation resistance and water resistance, and has very wide emission peak and half-height width of 124 nanometers.
Drawings
FIG. 1 is a crystal structure diagram of oxynitride green phosphor in example 1 of the present invention.
FIG. 2 is an XRD pattern of oxynitride green phosphor of example 1 of the present invention.
FIG. 3 shows the excitation and emission spectra of the oxynitride green phosphor of example 1 of the present invention.
FIG. 4 is a fluorescence diagram of the oxynitride green phosphor of embodiment 1 of the present invention after high temperature ignition.
FIG. 5 is a fluorescence performance chart of the oxynitride green phosphor of example 1 of the present invention after soaking.
FIG. 6 is an XRD pattern of oxynitride green phosphor of example 2 of the present invention.
FIG. 7 shows the excitation and emission spectra of the oxynitride green phosphor of example 2 of the present invention.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples.
Example 1
The nitrogen oxide green phosphor powder provided by the embodiment of the invention has a chemical general formula of Sr2-xCexAl3Si7ON13Wherein x is 0.04.
The preparation method of the nitrogen oxide green phosphor of the embodiment comprises the following steps:
(1) 2.8935g of SrCO were weighed30.0688g of CeO21.2296g of AlN and 3.2732g of Si3N4Adding the mixture into a mixing tank, and fully stirring the mixture to obtain a mixed raw material;
(2) transferring the mixed raw materials into a 40mL corundum crucible, putting the corundum crucible into a high-pressure atmosphere furnace, calcining for 4 hours at 1800 ℃ under the nitrogen atmosphere when the internal pressure of the furnace reaches 0.85MPa, taking out a sample after the temperature in a hearth is reduced to below 200 ℃, washing the sample to be neutral by deionized water, and drying.
The test shows that the product obtained in example 1 is a phosphor with a pure phase structure, the crystal structure diagram is shown in fig. 1, and the XRD diagram is shown in fig. 2. The excitation and emission spectra of the oxynitride green phosphor of example 1 are shown in fig. 3, the excitation spectrum is obtained by scanning at 535nm, and the emission spectrum is obtained by light excitation at 420nm, and it can be seen from fig. 3 that the oxynitride green phosphor of example 1 is suitable for ultraviolet and near ultraviolet chips and ultraviolet light (250-450 nm) excitation.
The light-emitting integrated intensity of the oxynitride green phosphor of example 1 after the oxynitride green phosphor of example 1 is cooled to room temperature after being respectively burned at 200, 400, 600, 800 ℃ for two hours in air atmosphere is shown in fig. 4, and the fluorescence intensity of the phosphor of example 1 after being burned is not reduced; the nitrogen oxide green phosphor of example 1 is demonstrated to be resistant to high temperature oxidation.
The oxynitride green phosphor of example 1 was soaked in deionized water for different periods of time, and then dried, and the integrated luminescence intensity of the oxynitride green phosphor of example 1 after soaking was measured at room temperature is shown in fig. 5, but the slightly increased luminescence intensity of the phosphor of example 1 after soaking in water was not decreased, but slightly increased, which may be caused by the fact that the deionized water eluted amorphous impurities on the surface of the phosphor. However, it can be said that at least the oxynitride green phosphor of example 1 has water-resistant properties and does not decrease in fluorescence intensity when exposed to water.
Example 2
The nitrogen oxide green phosphor powder provided by the embodiment of the invention has a chemical general formula of Sr2-xCexAl3Si7ON13The only difference between the oxynitride green phosphor of the present embodiment and embodiment 1 is: x is 0.08.
The product obtained in example 2 is found to be a pure phase structure phosphor by testing, and the XRD pattern is shown in fig. 6. The excitation and emission spectra of the oxynitride green phosphor of example 1 are shown in figure 7,
example 3
The nitrogen oxide green phosphor powder provided by the embodiment of the invention has a chemical general formula of Sr2-xCexAl3Si7ON13This exampleThe only difference between the oxynitride green phosphor of (1) and example 1 is: x is 1.
Example 4
The nitrogen oxide green phosphor powder provided by the embodiment of the invention has a chemical general formula of Sr2-xCexAl3Si7ON13The only difference between the oxynitride green phosphor of the present embodiment and embodiment 1 is: x is 0.01.
Comparative example 1
As a comparative example of the present invention, a phosphor having a chemical formula of Sr2-xCexAl3Si7ON13The only difference between the oxynitride green phosphor of the comparative example and the oxynitride green phosphor of example 1 is as follows: x is 0, namely the chemical general formula of the phosphor is Sr2Al3Si7ON13。
The phosphor of comparative example 1 was found to have no emission properties by testing.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The nitrogen oxide green phosphor is characterized in that the chemical general formula of the nitrogen oxide green phosphor is Sr2-xCexAl3Si7ON13Wherein x is more than 0 and less than or equal to 1.
2. The nitrogen oxide green phosphor according to claim 1, wherein x is 0.01. ltoreq. x.ltoreq.1 in the chemical general formula of the nitrogen oxide green phosphor.
3. The nitrogen oxide green phosphor according to claim 1, wherein x is 0.04. ltoreq. x.ltoreq.0.08 in the chemical general formula of the nitrogen oxide green phosphor.
4. A method for preparing an oxynitride green phosphor according to any one of claims 1 to 3, comprising the steps of:
(1) uniformly mixing a compound A containing Sr element, a compound B containing Ce element, a compound C containing Al element and a compound D containing Si element according to a stoichiometric ratio to obtain a mixed raw material, wherein at least one of the compound A, the compound B, the compound C and the compound D contains oxygen element, and at least one of the compound A, the compound B, the compound C and the compound D contains nitrogen element;
(2) and (2) calcining the mixed raw material obtained in the step (1) at 1400-1800 ℃ in an inert gas atmosphere.
5. The method according to claim 4, wherein in the step (2), the calcination time is 2-20 hours.
6. The method of claim 4, wherein the inert gas is nitrogen.
7. The method according to claim 4, wherein the Sr element-containing compound A is SrCO3、SrO、Sr(NO3)2Or SrC2O4。
8. The method according to claim 4, wherein the compound B containing Ce is CeO2Or Ce (NO)3)3。
9. The method according to claim 4, wherein the compound C containing Al is AlN or Al2O3Or Al (NO)3)3The compound D containing Si is Si3N4Or SiO2。
10. Use of the oxynitride green phosphor of any of claims 1-3 as a phosphor for LED lamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911424822.1A CN111057548A (en) | 2019-12-30 | 2019-12-30 | Nitrogen oxide green fluorescent powder and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911424822.1A CN111057548A (en) | 2019-12-30 | 2019-12-30 | Nitrogen oxide green fluorescent powder and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111057548A true CN111057548A (en) | 2020-04-24 |
Family
ID=70306254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911424822.1A Pending CN111057548A (en) | 2019-12-30 | 2019-12-30 | Nitrogen oxide green fluorescent powder and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111057548A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115710501A (en) * | 2022-12-22 | 2023-02-24 | 兰州大学 | Near ultraviolet excitation luminescent material for white light LED lamp and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037308A (en) * | 2013-03-07 | 2014-09-10 | 株式会社东芝 | Light-emitting Device |
| CN104204134A (en) * | 2012-03-16 | 2014-12-10 | 株式会社东芝 | Phosphor, phosphor production method, and light-emitting device |
| CN105441072A (en) * | 2014-09-18 | 2016-03-30 | 株式会社东芝 | Phosphor, light-emitting device, and method for producing phosphor |
-
2019
- 2019-12-30 CN CN201911424822.1A patent/CN111057548A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104204134A (en) * | 2012-03-16 | 2014-12-10 | 株式会社东芝 | Phosphor, phosphor production method, and light-emitting device |
| CN104037308A (en) * | 2013-03-07 | 2014-09-10 | 株式会社东芝 | Light-emitting Device |
| CN105441072A (en) * | 2014-09-18 | 2016-03-30 | 株式会社东芝 | Phosphor, light-emitting device, and method for producing phosphor |
Non-Patent Citations (1)
| Title |
|---|
| AOI OKADA ET AL.: "Control of Luminescence EmissionWavelength of Red-Emitting Phosphor (Sr1-xEux)2Si7Al3OuN14-u", 《ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115710501A (en) * | 2022-12-22 | 2023-02-24 | 兰州大学 | Near ultraviolet excitation luminescent material for white light LED lamp and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102120931B (en) | Red fluorophor and preparation method thereof | |
| CN101273108B (en) | Silicate phosphor for uv and long-wavelength excitation and preparation method thereof | |
| CN112094647B (en) | Narrow-band emission nitrogen oxide red fluorescent powder and preparation method thereof | |
| CN112457848B (en) | Narrow-band blue light fluorescent powder and preparation method and application thereof | |
| CN114437724B (en) | Gallate-based multicolor long-afterglow luminescent material and preparation method thereof | |
| CN113249125B (en) | Ce 3+ Doped silicate-based green fluorescent powder and preparation method and application thereof | |
| CN101831295A (en) | Silica-based nitride red fluorescent powder and preparation method thereof | |
| US20130140491A1 (en) | Green to Yellow Light-Emitting Aluminate Phosphors | |
| CN113201342A (en) | Ce3+Activated silicate broadband green fluorescent powder and preparation method and application thereof | |
| CN103525409A (en) | A high-luminous-efficiency high-stability nitride luminescent material and a manufacture method thereof | |
| CN111057548A (en) | Nitrogen oxide green fluorescent powder and preparation method and application thereof | |
| CN115305088B (en) | Garnet structure-based derived fluorescent powder material and preparation method and application thereof | |
| CN111100634A (en) | Long-afterglow fluorescent material and preparation method thereof | |
| CN110283588B (en) | Fluorescent powder for white light LED for illumination display and preparation and application thereof | |
| CN113999671B (en) | Fluorescent powder for illumination display white light LED, and preparation and application thereof | |
| CN109880622A (en) | A method of light-emitting phosphor intensity is enhanced based on nitridation | |
| CN115340869A (en) | Orange luminescent material, preparation method thereof and white light LED | |
| CN109294583B (en) | Cerium ion doped barium gadolinium titanate blue fluorescent powder for white light LED and preparation method thereof | |
| CN110922969B (en) | Nitrogen oxide blue fluorescent powder, preparation method and light-emitting device with nitrogen oxide blue fluorescent powder | |
| CN114702958B (en) | Heat-stable nitrogen oxide fluorescent powder and preparation method and application thereof | |
| Chen et al. | Second-phase-induced fluorescence quenching in non-equivalent substituted red phosphors | |
| CN110157429B (en) | Blue light excited ultra-wide spectrum fluorescent material and preparation method thereof | |
| CN110872515A (en) | Nitrogen oxide green fluorescent powder, preparation method and light-emitting device with nitrogen oxide green fluorescent powder | |
| CN115612493B (en) | Ultraviolet excited Eu (II) single doped red light emitting fluorescent powder and preparation method and application thereof | |
| US7682524B2 (en) | Phosphor for producing white light under excitation of UV light and method for making the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200424 |